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Finding the Fourth Proportional to 603,440.90, 905,161.30 and 154,162.74

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Solution

The fourth proportional to 603,440.90, 905,161.30 and 154,162.74 is: 231,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,440.90 : 905,161.30 = 154,162.74 : x
  2. Step 2: Convert to fraction form
    603,440.90/905,161.30 = 154,162.74/x
  3. Step 3: Cross multiply
    603,440.90x = 905,161.30 × 154,162.74
  4. Step 4: Simplify right side
    603,440.90x = 139,542,146,149.96
  5. Step 5: Solve for x
    x = 139,542,146,149.96/603,440.90
  6. Step 6: Final answer
    x = 231,244.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.